L-methionine ordinarily does not interfere with the aminopyrine breath test: studies in dogs and rats.
D000632:Aminopyrine / Q000378:metabolism*; D000818:Animals; D001944:Breath Tests; D002245:Carbon Dioxide; D002250:Carbon Radioisotopes; D004285:Dogs; D005260:Female; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D008297:Male; D008715:Methionine / Q000494:pharmacology*; D010634:Phenobarbital / Q000494:pharmacology; D051381:Rats
D002250:Carbon Radioisotopes; D000632:Aminopyrine; D002245:Carbon Dioxide; D008715:Methionine; D010634:Phenobarbital